using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Globalization;
using System.Runtime.CompilerServices;
using System.Text;

namespace Ips.Library.Entity
{
    public class EphResult
    {
        /// <summary>
        /// 卫星编号
        /// </summary>
        [DisplayName("卫星编号")]
        public int SatNum { get; set; }

        /// <summary>
        /// 星历时间
        /// </summary>
        [DisplayName("星历时间")]
        public DateTime Time { get; set; }

        /// <summary>
        /// 星历类型
        /// </summary>
        [DisplayName("星历类型")]
        public EphType EphType { get; set; }

        /// <summary>
        /// 位置X
        /// </summary>
        [DisplayName("位置X")]
        public double X { get; set; }

        /// <summary>
        /// 位置Y
        /// </summary>
        [DisplayName("位置Y")]
        public double Y { get; set; }

        /// <summary>
        /// 位置Z
        /// </summary>
        [DisplayName("位置Z")]
        public double Z { get; set; }

        /// <summary>
        /// 速度X
        /// </summary>
        [DisplayName("速度X")]
        public double Vx { get; set; }

        /// <summary>
        /// 速度Y
        /// </summary>
        [DisplayName("速度Y")]
        public double Vy { get; set; }

        /// <summary>
        /// 速度Z
        /// </summary>
        [DisplayName("速度Z")]
        public double Vz { get; set; }

        public EphResult() { }

        public EphResult(int satNum, DateTime time, double x, double y, double z, double vx = 0, double vy = 0, double vz = 0)
        {
            this.SatNum = satNum;
            this.Time = time;
            this.X = x;
            this.Y = y;
            this.Z = z;
            this.Vx = vx;
            this.Vy = vy;
            this.Vz = vz;
        }

        public EphResult(int satNum, EphType ephType, DateTime time, double x, double y, double z, double vx = 0, double vy = 0, double vz = 0)
        {
            this.SatNum = satNum;
            this.EphType = ephType;
            this.Time = time;
            this.X = x;
            this.Y = y;
            this.Z = z;
            this.Vx = vx;
            this.Vy = vy;
            this.Vz = vz;
        }

        public static EphResult FromString(string source)
        {
            EphResult result = new EphResult();
            var items = source.TrimEnd().Split('\t');
            int i = 0;
            if (items.Length >= 1 && DateTime.TryParseExact(items[i++], "yyyy-MM-dd HH:mm:ss", CultureInfo.CurrentUICulture, DateTimeStyles.None, out DateTime timeRes))
            {
                result.Time = timeRes;
            }
            if (items.Length >= 3)
            {
                result.X = double.Parse(items[i++]);
                result.Y = double.Parse(items[i++]);
                result.Z = double.Parse(items[i++]);
            }
            if (items.Length >= 6)
            {
                result.Vx = double.Parse(items[i++]);
                result.Vy = double.Parse(items[i++]);
                result.Vz = double.Parse(items[i++]);
            }
            return result;
        }

        public static EphResult[] FromListString(string result, string itemsep = "")
        {
            if (string.IsNullOrWhiteSpace(result))
                return Array.Empty<EphResult>();
            if (string.IsNullOrWhiteSpace(itemsep))
            {
                itemsep = Environment.NewLine;
            }
            var items = result.Split(itemsep.ToCharArray(), StringSplitOptions.RemoveEmptyEntries);
            EphResult[] results = new EphResult[items.Length];
            for (int i = 0; i < items.Length; i++)
            {
                results[i] = EphResult.FromString(items[i]);
            }
            return results;
        }

        public double[] GetEphXyz()
        {
            return new double[] { this.X, this.Y, this.Z, this.Vx, this.Vy, this.Vz };
        }

        public override string ToString()
        {
            return $"{SatNum},{Time:yyyy-MM-dd HH:mm:ss},{X},{Y},{Z},{Vx},{Vy},{Vz}";
        }
    }
}